My BLOG about my journey into the invisible world of ultraviolet UV photography, simulated bee, butterfly and animal vision photography and the special lenses, filters and lighting needed to make it work - also in HD video + 3D stereo.

Wednesday, September 17, 2014

Today about how the sun sees us and how bees might see us. Well, in other words: how does human skin look like in reflected ultraviolet (UV) light and in simulated bee vision (BV) all compared to normal human vision. Sun blocking cream has been applied to the right side of the face to show which impact that has. All shots were done outside using sunlight. A UV capable 35mm lens was used for this. All shots were done at about f5.6.

[click on image to see a larger one]

Color human vision VIS image (left), false color UV image (right)

BW human vision VIS image (left), bw UV image (right)

Aside from the striking impact that SPF50 sunblocker has, it gets quite obvious, that the reflected UV image clearly also shows the UV pattern a Rudbeckia fulgida flower has. Human skin in UV shows otherwise invisible freckles, about which some dermatologists say that is skin damage getting visible, caused by UV radiation. Further to that, the otherwise invisible front tooth repair also gets nicely visible.

P.S.: my polo shirt massively reflects UV around 365nm - that is for the UV nerds only :LOL:

So the bee vision (BV) image also shows the effect of the applied sun blocking cream, as well as the flower UV patterns. It is not as striking as the bw image, but what do we know, how a bee really sees us...

So to summarize, I would say that reflected UV photography is a very suitable tool to make all that so nicely visible!

Tuesday, September 16, 2014

Well, in August 2014 a video "How the sun sees you" by Thomas Leveritt went viral on the net, a video about using sun cream for skin cancer protection and raising awareness about the need for skin protection. Leveritt used materials and techniques which were known by UV photographers since many years and my readers here have seen my older videos which employed the very same techniques, however used to make visible what bees, butterflies and other insects see and we cannot - ultraviolet (UV) light. Usually I use a false color palette to make UV visible.

Have a look at the following HD black+white video clip to see that it is indeed doable. I would like to show in part II later that such a video can be made using a suitable camera, lens + filter.

Now the following is the same HD video clip, but this time in false UV colors. They have a meaning, but this might be revealed later on.

About Me

This is my blog about my film and photographic work in 3D, ultraviolet UV, infrared IR and fluorescence using special lenses and equipment. All text and images carry my copyright and I do not allow to link to or copy / download from my site or any parts thereof without my prior permission.
email me in case of questions or interest in my images (esp. for non-profit orgs) or if you need a complete camera + lens + filter + light set for UV photography:
postmaster AT macrolenses.de